QTextBlockUserData Class

The QTextBlockUserData class is used to associate custom data with blocks of text.

This class was introduced in Qt 4.1.

All functions in this class are reentrant.

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Publié le 27 décembre 2024 - Mis à jour le 27 décembre 2024

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QTextBlockUserData Class▲

Header: QTextBlockUserData
Since: Qt 4.1
qmake: QT += gui
Group: QTextBlockUserData is part of Rich Text Processing APIs

Detailed Description▲

QTextBlockUserData provides an abstract interface for container classes that are used to associate application-specific user data with text blocks in a QTextDocument.

Generally, subclasses of this class provide functions to allow data to be stored and retrieved, and instances are attached to blocks of text using QTextBlock::setUserData(). This makes it possible to store additional data per text block in a way that can be retrieved safely by the application.

Each subclass should provide a reimplementation of the destructor to ensure that any private data is automatically cleaned up when user data objects are deleted.

Member Function Documentation▲

[virtual] QTextBlockUserData::~QTextBlockUserData()▲

Destroys the user data.

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